Sterilizing apparatus.



E. KRON MAN STERILIZING APPARATUS. AP'PLIOATION FILED JULY 6, 1909.

Patented Sept. 14. 1909.

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L. KRONMAN.

STBRILIZING APPARATUS.

APPLICATION TILED JULY '6, 1909.

934,190. Patented Sept. 14, 1909.

\Mwsams. \wmmwcx EDWARD KRONMAN, OF NEW YORK, Y.

STERILIZING APPARATUS.

Specification of Letters Patent.

Patented Sept. 14:, 1909.

Application filed July 6, 1909. Serial No. 506,000.

To all whom it may concern:

Be it known that I, EDWARD K ONMAN, a citizen of the United States,residing in the borough of Manhattan, city, county, and State of NewYork, have invented certain new and useful Improvements in sterilizingApparatus, of which the following is a specification.

My improvements relate to the class of sterilizing chambers orreceptacles set forth in Letters Patent No. 883,463 issued to me March31st. 1908, and used by barbers, dentists, physicians and others for thepurpose of subjecting articles to high temperatures, vapors,disinfectants &c.,the object of the present invention being to afiord asimple compact structure in which practically all the internal space isavailable for articles to be treated, and to which access may be quicklyand conveniently had from either side without impairing the support ofthe contents of the receptacle.

The invention consists in the construction and arrangement of partshereinafter de scribed and claimed specifically.

In the accompanying drawings, Figure l, is a top View of my improvedsterilizing chamber, one door being open and the other closed; Fig. 2, aside elevation thereof, the door on this side being open; Fig. 3, an endelevation; Fig. 4L, a central vertical longitudinal section upon planeof line 44Fig. 1; Fig. 5, a transverse section upon plane of line 55Fig.1; Fig. 6, is a sectional detail upon an enlarged scale, taken uponplane of line 66Fig. 3; Fig. 7, is a longitudinal section upon anenlarged scale taken upon plane of line 7-7Fig. 2, looking upward; Fig.8, is an inner elevation of one of the doors; Fig. 9, an end elevationthereof; Fig. 10, an elevation of the front end of a door.

My improved form of receptacle consists of a cylindrical body B, closedat either extremity by sealed heads 6, 6. Its under side is formed witha socket s, for the reception of the tubular connection 0, through whichthe steam, vapor, heat, disinfectant medium or the like may beintroduced into the interior of the receptacle through the holes 8, s,in the hood 8 above the socket s. The foraminated plate or tray p, thelongitudinal edges of which rest against the cylindrical sides of thereceptacle, have dependent segmental shaped end flanges which tend toconfine the steam, vapor or other medium of treatment, and force thelatter up through the holes in the plate 79 to the material or articlesabove the tray. For convenience of insertion into or removal fromposition the tray 72, is preferably made in three sections 39, 79 phinged together and folding one upon the other when desired.

Although in reality the cylindrical body B, constitutes but one commonchamber, the bottom of which is occupied by the foraminated tray 39, Iso arrange the inlet apertures a, a, as to render the receptaclepractically duplex in character. That is to say the inlet apertures a,a, are not only arranged on opposite sides of the vertical plane of thelongitudinal axis of the receptacle, but they are relatively speaking atopposite ends thereof. They are also above the horizontal plane of itscentral longitudinal axis, and extend up nearly to the vertical plane ofsaid central longitudinal axis. Hence each aperture a, is opposed on theopposite side of the receptacle and above the central horizontal plane(as well as below said plane) by a continuous surface or support forarticles or material placed within that end of the receptacle B,

and as the lower edge of the aperture is above said central horizontalplane, ample support is afforded for the contents of the receptacle, andthere is no danger of the contents thereof falling out accidentally wheneither door D, is opened. d, d, are inturned flanges on the longitudinaledges of the doors, for engagement with the longitudinal ways w, w,hereinbefore mentioned. The length of the apertures a, a, issubstantially equal to one half the length of the cylindrical receptacleB; and they are closed by horizontally sliding doors of slightly greaterlength, resting in horizontal longitudinal ways 10, 10, consisting ofinturned flanges on the arched upper inner surface of the receptacle.The outer edge. of each of these doors D, is formed with an inturned lipor flange d, which engages with a spring latch b, situated upon theinner side of the opposed edge of the aperture. This latch b, may bedepressed to release the lip d, by a thumb bearing 6, extending througha hole Z2 in the receptacle. I/Vhen thus released by the depression ofthe spring latch o, the door is forced backward by a retractile spring8, which is secured at one end to the inner side of the cover and at theother to any suitable portion of the cylinder. Thus the door opensquickly and automatically to the full extent of travel when the latchZ),

shock and noise.

is de )ressed the sorin s s retractin the .door until the rear flange dof the door ceives and deadens-the impact of the door when the latter ispulled back and open by the retractile spring 8", thereby preventing Thedoor D, is provided with an external handle (Z', by. means of which itmay be drawn forward againstthe resistance of the sarin s and forcedinto engagement with the spring latch b, which yields before the lip cl,and then snaps over the same to secure the door in its closed po sition.The rear flange 0Z of the door is formed with an opening cl, for theaccommodation of the spring 8.

The above description applies to both the doors I), and theirconnections, the parts being duplicated on either side of the axialcenter and above the horizontal plane thereof. This will be seen'byreference more particularly to Fig. 7, in which the relative positionand arrangement of parts in the inner upper half of the cylinder isclearly shown. I thus attain practically a duplex sterilizing receptacleof maximum capacity for a given size and diameter,-the chamber beingaccessible from either side, and the contents, even when the receptacleis full, being amply supported even if both doors are open at the sametime, since each door aperture a, is backed by and opposed to acontinuous internal surface of cylindrical form extending from onehorizontal edge of theaperture to the other, so that the contents ofboth ends of the receptacle are positively supported and inclosed by acontinuous internal surface of more than three fourths the circumferenceof the cylinder, exclusive of thedoor spaces. Furthermore thearrangement is neat and compact, and the automatic retraction of thedoor is not attended by noise or objectional jar.

VVhat I claim as my invention and desire to secure by Letters Patent is,

1. A receptacle of the character described,

comprising a cylindrical body formed with closed and sealed ends, saidcylindrical body being also formed with a longitudinal aperture neareach extremity, said apertures being situated on opposite sides of thevertical axial plane of'the cylinder and above its horizontal axialplane, in combination with internally arranged and supportedhorizontally sliding doors for closing said apertures.

2. A receptacle of the character described, comprising a cylindricalbody, with closed ends and formed with a door aperture near eachextremity, said apertures being on opposite sides of the vertical axialplane of the cylinder and above itshorizontal axial plane, incombination with, internally arranged and supported sliding doors forclosing said openings, retractile springs ar-' ranged to draw the doorsopen, and releasable means for" holding the doors closed against theresistance of said retractile springs. 7 j.

3. A receptacle of the character described, comprisin a cylindrical,body with closed ends and ormed with a door aperture 'near eachextremity, said apertures being on 0pposite sides of the vertical axialplane "of i the cylinder and'above its horizontal axial plane, incombination w1th lnternally arranged and supportedsliding doors forclosing said openings, retractile springs arranged to draw the doorsopen, and spring catches arranged to maintain the doors in their closedpositions against the resistance of said retractile springs.

at. A receptacle of the character described,

comprising a cylindrical body with closed ends and formed with a door[perture near each extremity, said apertures being on opposite sides ofthe, vertical axial plane of the cylinder and above its horizontalaxialjplane, in combination with internally arranged and supportedsliding doors for closing sa1dopen ings, retractile springs" arranged'to draw the doors open, elastic resilient stops Yarranged to receivethe impactof thedoors when opened by said springs, and releasable meansfor holding the doors closed against the resistance of said'springs, V Vi 7 EDWARD xaoNMAN. Witnesses: 7 l

D. W, GARDNER, GEO. WVM. MIATT.

